[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[IDV #FSO-119762]: Generating bundle files

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [IDV #FSO-119762]: Generating bundle files
  • Date: Thu, 14 Sep 2006 13:51:04 -0600
Hi Bruce,

> You don't know me, but I'm told you're the guy to talk to for my
> particular issue.
> 
Maybe.

> My team and I are developing a way to remotely process archived data
> and visualize the result.  We are looking into having the processing
> software generate an IDV bundle or jnlp file from a template
> appropriate for displaying the data via an OPeNDAP datasource and a
> default display suitable for initial result viewing.  A link to the
> bundle or jnlp file would be emailed to the user when processing is
> complete.  The issue is that the xml bundle is fairly cryptic, and I
> have not been able to locate documentation describing the minimum
> elements required to initialize IDV without exception.  Can some
> elements for a display be omitted and left to IDV to figure out?  The
> ability to generate a minimal bundle file is key to generating
> templates for generic data types.  Would you be able to provide any
> guidance?
> 

If all you want to do is to start up the IDV and load in a given data source
you can generate a jnlp file that has a command line argument -data <opendap 
url>
The THREDDS group does this on our motherlode server. e.g., the page:
http://motherlode.ucar.edu:8080/thredds/catalog/model/NCEP/DGEX/CONUS_12km/catalog.html?dataset=NCEP/DGEX/CONUS_12km/DGEX_CONUS_12km_20060914_0600.grib2
at the bottom under "Viewers" has a link:
"Integrated Data Viewer (IDV) (webstart)"

Now, if you want to start up the IDV with the data loaded and with displays 
created you can 
create an example bundle with some data source and the displays you want. Save 
this off, e.g, 
as template.xidv

Now, we don't encourage users to edit bundles but...
Near the top of the bundle you should see something like:
<string><![CDATA[/upc/share/metapps/test/data/grids/03061212_eta.nc]]></string>
But with your open dap url. Change that to some templated format. e.g.:
<string><![CDATA[${THE_OPENDAP_URL}]]></string>

Now, your generated jnlp can have a command line argument that is a url that 
backs back
to your server and contains the actual opendap url as an argument. It would 
simply do
the substitution inthe template.xidv and deliver that back to the user.

-Jeff


Ticket Details
===================
Ticket ID: FSO-119762
Department: Support IDV
Priority: Normal
Status: Closed